Starter
$0
Start free — no credit card required.
- Full Polymarket crypto market coverage
- Discovery, order books, prices, and metrics
- Finest resolution: 1s
- 60 requests/min · 1,000/day
- 3 days of history
- 1 free AI backtest
- 3 free strategy backtests
API plans and limits
Choose a data window and add-ons for the PolyOrderbooks historical API — including Backtest AI for plain-English strategy replay. Every plan queries down to 1-second resolution, including the free Starter plan. Pay with card or 300+ cryptocurrencies at checkout.
Build your plan
$19/mo
Pick a history window, then add speed and Backtest AI as needed.
History window
Speed
300 requests/min · 50,000/day
- Finest resolution: 1s
- 300 requests/min · 50,000/day
- 30 days of history
Get started
Pay by card or crypto
Backtest AI
$29/mo
Write your idea in plain English. We'll tell you if it's a money-maker.
- Strategy backtests — Unlimited
- AI backtests — 500 / month
- 8 crypto coins — BTC, ETH, SOL, XRP, HYPE, BNB, DOGE, ZEC
- 70k+ resolved markets to backtest
- AI-generated strategy analysis
- 30 days of market data for AI
- Data API access
Get started
Pay by card or crypto
Enterprise
Custom
Full data dumps, custom feeds, and bespoke delivery.
- S3 exports and dedicated support
- Custom rate limits, history, and granularity
- Private or dedicated access
- SLA and onboarding
Plan limits compared
| Plan | Price | Finest resolution | API rate limit | History window |
|---|---|---|---|---|
| Starter | $0 | 1s | 60 requests/min · 1,000/day | 3 days |
| 30-day data | $19/mo | 1s | 300 requests/min · 50,000/day | 30 days |
| 60-day data | $29/mo | 1s | 300 requests/min · 50,000/day | 60 days |
| 90-day data | $39/mo | 1s | 300 requests/min · 50,000/day | 90 days |
| 120-day data | $49/mo | 1s | 300 requests/min · 50,000/day | 120 days |
| Backtest AI add-on | +$19/mo | — | Any window speed | On any data plan |
| Backtest AI (standalone) | $29/mo | 1s (archive replay) | AI endpoint | 30 days (for AI) |
| Enterprise | Custom | Custom | Custom | Custom |
Backtest AI
Describe a strategy in plain English — replay it over resolved markets
Backtest AI lets you describe a crypto Up/Down strategy in plain English and replay it over real 1-second L2 order books. Every run includes fill simulation, slippage estimates, and an AI-generated analysis of the results.
- Standalone plan — $29/mo with unlimited strategy backtests and 500 AI backtests/month
- Add-on — +$19/mo on any data window for the same AI replay with your own L2 history
FAQ
More questions answered on the FAQ page →
Is Starter really free?
Yes — Starter is free with no credit card. Sign up, verify your email, and create an API key from the dashboard. Pick a data window from $19/mo (30 days of history, up to 120) and add Backtest AI for +$19/mo, or get the standalone Backtest AI plan for $29/mo with 30-day market data and unlimited strategy backtests — all from the pricing page with card or crypto checkout.
What does resolution mean?
History endpoints take a resolution parameter (how finely points are returned). We run a 1-second capture loop over open markets. Every plan, including the free Starter tier, can query down to 1s. Coarser buckets (1m–1d) stay on every plan.
Which markets are covered?
Today we collect and serve Polymarket crypto markets only. Other categories are not in the archive yet — Enterprise can discuss custom coverage.
What happens if I hit a rate limit?
Exceeding your plan's per-minute or daily caps returns HTTP 429 with a Retry-After header (seconds). Slow your client and retry, or upgrade to a faster speed (Fast +$19/mo, Heavy +$39/mo) from the pricing page for higher limits.
Can I pay with cryptocurrency?
Yes. Paid plans support card payments and 300+ cryptocurrencies at checkout. Starter stays free with no payment required.
How do I cancel or change my plan?
Open your dashboard and click Manage subscription to open the billing portal. You can cancel, update your payment method, or download invoices there. Plan changes take effect after the provider confirms the update.
Can I buy bulk data dumps?
Not as a standard self-serve plan. Enterprise customers can arrange S3 bulk exports in Parquet, CSV, or JSON — one-time or on a schedule. Email contact@polyorderbooks.com or see the Enterprise tier on pricing to discuss.
New to the data? Read our Polymarket API data guide or the historical data overview.